Tucked away beside Southwark Cathedral, Fish! entices the foodies of south-east London to its airy glass pavilion with a menu of freshly sourced and simply executed seafood. No-nonsense dishes such as steamed mussels and fish pie are prepared by the exuberant chefs at the open kitchen while hungry diners look on. All fish comes from sustainable organic stock wherever possible, and the restaurant is GM-free. The terrace offers weekend diners the chance to savour the hubbub of Borough food market.